package com.atguigu.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

/**
 * @author fxz
 * @date 2021/5/22 13:31
 **/
@Service
public class PaymentService {

    public String paymentInfo_OK(Integer id) {
        return "线程池: " + Thread.currentThread().getName() + "  paymentInfo_OK,id:" + id + "---";
    }

    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler", commandProperties = {@HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "3000")})
    public String paymentInfo_TimeOut(Integer id) throws InterruptedException {
        //int i = 9/0;
        int timeNumber = 5;
        TimeUnit.SECONDS.sleep(timeNumber);
        return "线程池: " + Thread.currentThread().getName() + "  paymentInfo_TimeOut,id:" + id + "---";
    }

    public String paymentInfo_TimeOutHandler(Integer id) {

        return "线程池: " + Thread.currentThread().getName() + "  paymentInfo_TimeOutHandler,id:" + id + "---兜底";
    }

    //===============服务熔断===============
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback",
            commandProperties = {@HystrixProperty(name = "circuitBreaker.enabled", value = "true"),  //是否开启断路器
                    @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"),   //请求次数
                    @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "10000"),  //时间范围
                    @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "60")}//失败率达到多少后跳闸}
    )
    public String paymentCircuitBreaker(@PathVariable("id") Integer id) {
        if (id < 0) {
            throw new RuntimeException("*****id 不能负数");
        }
        String serialNumber = IdUtil.simpleUUID();
        return Thread.currentThread().getName() + "\t" + "调用成功,流水号：" + serialNumber;
    }

    public String paymentCircuitBreaker_fallback(@PathVariable("id") Integer id) {
        return "id 不能负数，请稍候再试,(┬＿┬)/~~     id: " + id;
    }

}
